Hi folks,
I am working on a poc using resteasy framework and resteasy's
MessageBodyWriterInterceptor
the resource looks like this
@GET
@Path("/{id}")
public Response getUserDetails(@PathParam("id") String id);
The business logic is implemented using a stateless ejb below is the
implementation
@Override
public Response getUserDetails(HttpRequest request, String id) {
----- business logic -------
ResponseBuilder builder = Response.ok());
return builder.build();
}
The interceptor class code is mentioned below
==============================
@Provider
@ServerInterceptor
public class ResponseInterceptor implements MessageBodyWriterInterceptor{
private static final Logger logger =
Logger.getLogger(ResponseInterceptor.class);
ResponseBuilder builder = null;
@Override
public void write(MessageBodyWriterContext context) throws IOException,
WebApplicationException {
Object entity = context.getEntity();
logger.debug("Response interceptor: "+entity.getClass());
if (entity != null) {
if ( entity instanceof User){
User entls = (User)entity;
if (entls !=null && entls.getErrorCode()!=null) {
if (entls.getErrorCode() == Status.BAD_REQUEST.getStatusCode()){
logger.debug("Response interceptor: "+entls.getErrorCode());
throw new BadRequestException("Bad request",Response.status(400)
.entity(entls).header("Bad request", "400")
.type("application/xml")
.build());
}
My question are the following
1. Whether it's good to create all the response from the interceptor class
i.e . for htpp 200, 40*, 50* etc..or we should handle only exceptional cases
which are then Handel by the Exception mappers
2. What is the advantage of PostProcessorInterceptors over
MessageBodyWriterInterceptor ?
3. Could you please provide some sample use case?
4. out of Resteasy interceptor and Ejb interceptor which one is good in terms
of performance ?
Thanks & Regards
BBSR
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